Peep opening for wireless-telegraph radio boxes



Nov. 13 1923. 11,473,941

H. c. STEVENS I PEEP OPENING FOR WIRELESS TELEGRAPH RADIO BOXES FiledApril 5. 1922 J-lE/Y/EY C. STEVE/7.5

Patented Nov. 13, i923.

HENRY G. STEVENS, 0F OAKLAND, GALIFOBNIA.

PEEP OPENING FOR WIRELESS-TELEGRAPH RADIO BOXES.

Application filed April 5,

T 0 all who m it may concern Be it known that I, HENRY C. STEVENS, acitizen of the United States, residing at Oakland, in the county ofAlameda and State of California, have invented certain new and usefulImprovements in Peep Openings for lVireless-Telegraph Radio Boxes, ofwhich the following is a specification.

My invention is a sight opening for wireless telegraph and telephoneradio boxes, which is of such construction as to permit one to look intothe box, to ventilate the box and to keep out insects.

Referring to the annexed drawing in which my invention is illustratedand which forms a part of this specification:

Figure 1 is a front view of a radio box and two of my sight openingsfitted in the front wall thereof.

Figure 2 is a vertical longitudinal section of one form of my sightopening taken on line 2-2 of Figure 1.

Figure 3 is a view similar to Figure 2 of a modified form of my sightopening.

My sight opening comprises a cylindrical shell 1, a ring 2 and a screen3, said parts being common to both forms of my invention shown in thedrawings.

In the form of my invention shown in Fig. 2 the ring 2 is provided withan annular rabbet a in its rear interior edge and an annular internalflange 5 at its forward interior edge, and the screen 3 is formed withan annular flange 6 bent rearwardly from the edge thereof. Said screenfits within the rabbet t against the rear of ring flange 5 with itsflange 6 fitting against the annular wall of said rabbet. The forwardend of the shell 1 is fitted within the screen flange 6 in the rabbet 4cand said flange to- 1922. Serial No. 549,798.

gether with said end of the shell are soldered to the annular wall ofsaid rabbet.

In the form of my invention shown in Fig. 3 there is no rabbet in thering 2 but the interior edge of the ring is bent rearwardly forming arearwardly extending an nular flange 7, while the screen 3 is bentforwardly at its edge forming a forwardly extending annular flange 8.The screen flange 8 is fitted over the ring flange 7 and the forward endof the shell 1 is fitted tightly over the screen flange 8 and the ringflange 7, clamping said screen flange between the shell and the ringflange 7. The forward edge of the shell 1 is soldered to the rear of thering 2.

The radio box 10 is provided with openings 11, in each of which I fitone of my sight openings, the shell 1 of which fits in the opening withthe ring 2 engaging the front wall of the box.

Having described my invention, I claim:

1. A sight opening for a radio box including a shell, a ring, and ascreen, the forward end of said shell and said screen being secured tosaid ring with the screen extending across the opening of said ring, andsaid shell fitting in the opening in the radio box with said ringengaging the wall of the box.

2. A sight opening for a radio box ineluding a shell, a ring and ascreen, said ring being formed at its inner edge with an inturnedflange, said screen being formed at its edge with an outturned flangefitting over said inturned flange, the forward end of said shell fittingover said screen flange and said ring flange, and the forward edge ofsaid shell being secured to said ring.

In testimony hereof I afix my signature.

HENRY o. STEVENS.

